Patient interface assembly



FIG. 1 is a perspective view showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of unclaimed portions of the article is included for the purpose of illustrating boundaries of the claim and forms no part of the claimed design. The broken line showing of an attachment to the article is included for the purpose of illustrating environment and forms no part of the claimed design. 

CLAIM The ornamental design for a patient interface assembly, as shown and described. 